Interrigative sentences are formed using do, did, does, and all these kinds of verbs, so we have used 'does' as 'does' is often used in these kinds of sentences. Secondly, we have removed s from know because does have been used. Lastly, we have put a question mark in the end which is very important to complete an interrogative sentence.
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Answer:
Does everyone know Mahatma Gandhi?
Explanation:
Interrigative sentences are formed using do, did, does, and all these kinds of verbs, so we have used 'does' as 'does' is often used in these kinds of sentences. Secondly, we have removed s from know because does have been used. Lastly, we have put a question mark in the end which is very important to complete an interrogative sentence.